docbook: Variables in an SGML or XML document
Subject:
Re: Variables in an SGML or XML document
From:
Emma Jane Hogbin ####@####.####
Date:
15 Nov 2003 22:33:11 -0000
Message-Id: <20031115223203.GA3160@debian>
On Sat, Nov 15, 2003 at 03:57:32PM -0600, Rodolfo J. Paiz wrote:
> Can I define a variable in an SGML or XML document, like $TITLE for
> instance?
Yes. In SGML/XML land they're called "entities." You create them at the
very beginning of your document in the document type declaration. Here are
some of the entities that are used in the Author Guide:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
<!-- Chapter One: About this guide -->
<!ENTITY ag-about SYSTEM "ag-about.xml">
<!ENTITY tldp SYSTEM "tldp.xml">
<!-- Text Macros -->
<!ENTITY conectivasa '<ulink url="http://www.conectiva.com">Conectiva S.A.</ulink>'>
]>
You add the entities inside the DOCTYPE tag with square brackets. You can
point to other file:
<!ENTITY shortcut SYSTEM "filename">
or you can put the value right in the entity definition:
<!ENTITY shortcut "Replace 'shortcut' with this text.">
To use them you would call them up with &entityname;. The three entities
above would be used in your document with:
&ag-about;
&tldp;
&conectivasa;
I hope that helps!
emma
--
Emma Jane Hogbin
[[ 416 417 2868 ][ www.xtrinsic.com ]]
